What color is Stopper ?

Source Crayola® CSS3 CSS4
#384174
 
#1a4876
midnight blue
#483d8b
dark slate blue
#483d8b
darkslateblue
#50454c
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#6b6b71
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#9098a1
 
#979aaa
manatee
#778899
light slate grey
#778899
lightslategrey
#93936c
 
#9f8170
beaver
#808080
grey
#808080
grey